I cancelled my subscription yesterday. Not because I didn't like the game, nor because I have any problem with paying $15/month for access to a game like that.
Ultimately I could tell getting too deep into SWG would be disruptive of my work and my social life, which are both going very well relative to past years. That, in my opinion, is the unacceptable price.
I do, however, have a little more sympathy for the "Evercrack" addicts out there. I can easily see how it could happen.
Exploring the SWG planets (I'm sure I saw less than 1/20th of what was out there) and trying out the lower tier skills was a lot of fun. I'm still curious how the player economy will turn out, but it seemed to work fine during the startup phase for my purposes. Mastering an elite skill tree without taking advantage of some fast xp exploit looked like a pretty time consuming task. Time I don't have. Compared to many single player games I have paid for in recent years, I definitely feel I got my money's worth.